基于IEEE1588的节点硬件时间戳实现方法研究  

Research on the Realization Method of Node Hardware Timestamp Based on IEEE1588

作　　者：陈亚峰 陈园 

机构地区：[1]河南省轻工业学校 [2]河南省工艺美术学校,郑州450000

出　　处：《中原工学院学报》2015年第4期20-23,72,共5页Journal of Zhongyuan University of Technology

摘　　要：以IEEE1588精确同步时钟标准为依据,分析了高精度时钟同步机制和IEEE1588协议的核心算法——最佳主时钟算法,并论证了时间标记的精度是影响IEEE1588协议同步精度的最主要因素。在分析高精度时钟同步机制的基础上,提出了基于DP83640的时间标记解决方案。验证表明,该方案中主从时钟同步偏差明显减小,同步效果明显改善。Based on IEEE1588 precision synchronization clock standard, the precision synchronization clock mechanism and the core algorithm of IEEE1588 protocol the best master clock algorithm are analyzed, and it is demonstrated that the accuracy of the timestamp is the most important factor affected the accuracy of IEEE1588 protocol synchronization . On the basis of that, the solution based on DP83640 time markers is put forward. The experiment verifies that master-slave clock synchronization deviation obviously is decreased, synchronous effect is obviously improved.

关 键 词：IEEE1588 时钟同步 时间戳 DP83640 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]